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E-anesthetic circuit diagram

2014-11-17 00:03  
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E-anesthetic circuit diagram
As shown is the electronic anesthesia circuit. The circuit can output 8 groups of electrode which output at the same time independently. Regulating any one of the groups, other groups will not be affected. You can choose the 2Hz ~ 50Hz frequency range. Generally taking 2 ~ 3Hz operating frequency will make 8-output cost 100mW power. Since the transistor oscillator is basically a constant current source, when 2 more groups output at the same time(such as 4 groups), if one group outputs high, the negative pulse output of other groups will be low. That means, they will influence each other. It is bad for E-anesthetic. So we should avoid this situation. To eliminate this shortcoming. We can add one Zener diode at both ends of the oscillator output transformer primary winding,. It play the role of limiting the regulator.